Streetlight Application 143W isolated flyback

ikon

Hi Support,

Do you have 143W isolated-flyback driver solution for below spec?

Below are the Driver specification:
143W Isolated Fly back (continuous- conduction mode)
Input Voltage:198Vac ~265Vac
Output Voltage :90Vdc~168Vdc
Output Current: 850mA

If yes, is it OK when test your solution with gasoline AC generator 220Vac?
OK means driver will not causing generator AC voltage distorted.
As during streetlights installation, installer will test the streetlamp with gasoline AC generator first.
We working looking for driver solution can be working fine with gasoline AC generator.

Our existing driver is working fine with AC source and wall plug, but when test with gasoline AC generator, the driver will causing generator AC voltage waveform distorted as below picture,
and due to spike voltage too high, it will burn the MOV after around 30seconds.

But test with other application drivers, the generator AC voltage waveform is OK as below picture:-

Thanks.

over 8 years ago

0 LeonardEllis over 8 years ago

TI__Guru 71526 points

Hello ikon,

I suggest you go to the TI Reference Designs for Power Management: http://www.ti.com/general/docs/refdesignsearchresults.tsp .

You can enter the parameters, and view the resulting designs.

I found three one that might be appropriate (using ACIN, 265V MAX, 1A, Non-Isolated):

Converter with 85VAC - 318VAC Input and 15V at 0.8A Output Reference Design ,

85-318Vin, 15Vout, 1Aout, AC-DC Buck Converter Reference Design , and

95VAC-305VAC 460W Interleaved TM PFC (http://www.ti.com/tool/PMP5194 ).

Please review this and see if it might be applicable to your design requirements (it would require modifications for your specified requirements).

Regards,

~Leonard

Power management

Power management forum

Streetlight Application 143W isolated flyback